John Kerry: “America's role is vital, but we must all be partners in this effort.”

It's a matter of mathematics and physics, not politics, not ideology. It is a response to the science.

The message coming out of this COP is, we are moving away from fossil fuels. We are not turning back. That is the future.

Back-up baseload, no. But, some primary they could be part of it.

Hopefully we can get there.